diff --git a/src/core/managers/AccountManager.ts b/src/core/managers/AccountManager.ts
index 77d1d16cf..2edeb471a 100644
--- a/src/core/managers/AccountManager.ts
+++ b/src/core/managers/AccountManager.ts
@@ -7,7 +7,7 @@ import NavigationEndpoint from '../../parser/classes/NavigationEndpoint.js';
 import { InnertubeError } from '../../utils/Utils.js';
 
 export default class AccountManager {
-  #actions: Actions;
+  readonly #actions: Actions;
 
   constructor(actions: Actions) {
     this.#actions = actions;
diff --git a/src/core/managers/InteractionManager.ts b/src/core/managers/InteractionManager.ts
index eb0f0f4de..07b751852 100644
--- a/src/core/managers/InteractionManager.ts
+++ b/src/core/managers/InteractionManager.ts
@@ -5,7 +5,7 @@ import type { Actions, ApiResponse } from '../index.js';
 import NavigationEndpoint from '../../parser/classes/NavigationEndpoint.js';
 
 export default class InteractionManager {
-  #actions: Actions;
+  readonly #actions: Actions;
 
   constructor(actions: Actions) {
     this.#actions = actions;
diff --git a/src/core/managers/PlaylistManager.ts b/src/core/managers/PlaylistManager.ts
index 0d52dc693..5247e2b9d 100644
--- a/src/core/managers/PlaylistManager.ts
+++ b/src/core/managers/PlaylistManager.ts
@@ -6,7 +6,7 @@ import type { Feed } from '../mixins/index.js';
 import NavigationEndpoint from '../../parser/classes/NavigationEndpoint.js';
 
 export default class PlaylistManager {
-  #actions: Actions;
+  readonly #actions: Actions;
 
   constructor(actions: Actions) {
     this.#actions = actions;